Tooth-regulating appliance.



F. W. DRISSLER.

TOOTH REGULATING APPLIANCE.

APPLICATION FILED JUNE 13, 1914.

1,139,170.. 1 P1161161 May 11, 1915.

FREDERICK W. DRISSLER, OF MI ENNEAPOLIS, MINNESOTA.

Specification of Letters latent.

Patented May-11, 1915 Application filed June 13, 1914. Serial No. 844,882.

To all whom it may concern Be it known that I, FREDERICK W. DRIS- sum, citizen of the United States, residing at Minneapolis, in the county of Hennepin and State of Minnesota, haveinvented certain new and useful Improvements in Tooth- Regulating Appliances; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention has for its object to provide an improved tooth regulating appliance and is in the nature of an improvement on the Jackson method, well-known to the profession, wherein the regulator is detachably and removably secured in position. v

To the above end, generally stated, the invention consists of the novel devices and combinations of devices hereinafter described and defined in the claims.

In the accompanying drawings, which illustrate the invention, like characters in dicate like parts throughout the several views.

Referring to the drawings, Figure 1 is a view of an upper jaw, having applied to the teeth thereof the improved regulating appliancegFig. 2 is a plan view of the improvd tooth regulating appliance; Fig. 3 is a detail view, in section, taken on the line w -m of Fig. 1; Fig. 4 is a detail view, partly in plan and partly in section, showing the swivel connection between one of the anchor plates and the arch bar; and Fig. 5 is a detail view, showing another method of connecting the so-called equalizing spring to the anchor plates.

The numeral 1 indicates a pair of anchor plates fitted to the lingual surfaces of the crowns of certain of the molars and bicuspids of a jaw Z. As show, these anchor plates 1 extend down about one-quarter of an inch from the necks of the teeth, to which they are applied, on the palatine surface, and are provided with anchor loops 2, which embrace the teeth to which said plates are anchored.

A ring arch bar 3, having its end pivoted at 4 to the posterior portion of the anchor plates 1, for movement in the arc of a circle, toward and from the roof of the mouth, extends forwardly along the anchor plates to within about one-half of an inch of the central teeth. The anchor plates 1 are connected anteriorly by an equalizing spring 5, bent to conform with the palatine surfaceof the mouth, forward of the arch 3. As shown in Figs. 1 and 2, the ends of the s ring 5 are rigidly secured to .the'plates 1. bviously, the arch bar 3 and equalizlng spring 5, which is also in the form of an arch, can be spread or contracted, at will, 1n order to apply the proper tension on-the teeth. By connecting the anchor plates 1, at their ends, with the arch bar 3 and spring 5, the pressure on the said plates will be equally distributed and under control to' spread the teeth.- This will allow any of the teeth which may be out of alinement to be forced back into their proper relation with respect to the other teeth. The swiveled connections 4, between the anchor plates 1 and the arch bar 3, permit said arch bar to be spread or contracted without danger of breaking the same at its connection with said anchor. plates, which has been one of the weak points of similar appliances, heretofore used.

Anchored at its ends to the anchor loops 2, is a combined regulating and retaining spring bar 6. This bar 6 is in the form of an arch and is bent to fit over the labial. and buccal surfaces of the teeth and is provided at its intermediate portion with a lateral crook 7, adapted to be spread or contracted, at will, to vary the longitudinal length of the bar 6, to bring the same into 1 its proper relation with the teeth. 'In the drawings, the bar 6 is also shown bent or crooked at 8 in a manner to tend to move the eye tooth, on the left in respect to the drawings, into its proper position.

Secured to the arch bar 3 is a pair of reversely formed S-shaped springs 9. arranged to move the anterior teeth outward into their proper positions. To one of the springs 9, to-wit: the left with respect to the drawings, is secured a spring finger 10, arranged to engage the incisor next to the eye tooth and move the same to the right as said tooth is moved outward by the respective spring 9. The joints between the bar 6 and loops, -2, springs 9 and arch bar 3, and spring finwhich they are required to perform. The regulating and retaining bar 8 may also be bent into different forms.

Referring to the modified construction shown in Fig. 5, it will be noted that the equalizing spring 5 is ivoted at its ends to the anchor plates 1 or movement in the arc of a circle, toward and from the roof of the mouth, thus permitting independent movement of said spring with respect to the anchor plate. 4

The above described appliance has in actual usage proven highly efficient for the purpose had in view.

What I claim is:

1. In a tooth regulating appliance, the combination with a pair of anchor plates fitted to the lingual surfaces of the crowns of the teeth, to which they are anchored, and means for securing said anchor plates to said teeth, of an arch bar, pivoted at its ends to said plates, for rotary movement in the arc of a circle, toward and from the roof of the mouth.

2. In a tooth regulating appliance, the combination with a pair of anchor plates, fitted to the lingual surfaces of the teeth to which they are anchored, and having anchor loops embracing said teeth, of an arch bar, having its ends pivoted at the distal of said plates for rotary movement in the arc of a circle, toward and from the roof of the mouth and extended forward-to a pointback of the central teeth, and an equalizing spring connecting said anchor plates anteriorly.

3. In a tooth regulating appliance, the combination with a pair of anchor plates,

which they are anchored, and means for securing said anchor plates to said teeth, of an anchor bar, having its ends pivoted tosaid plates for rotary movement in the arc of a circle, toward and from the roof of the mouth, and a combined regulating and retaining bar, having its ends secured to said plates and extended over the labial and buccal surfaces of the teeth. v

4. In av tooth regulating appliance, the combination with a pair of anchor plates fitted to the lingual surfaces of the teeth to which they are anchored, and means for se-. curing said anchor plates to said teeth, of an arch bar, having its ends connected at the distal of said plates, and an equalizing spring, having its ends pivoted to said anchor plates anteriorly, for rotary movement in the arc of a circle, toward and from the roof of the mouth.

5. In a tooth regulating appliance, the combination with a pair of anchor plates fitted to the lingual surfaces of the teeth to which they are anchored, and means for securing said anchor plates to said teeth, of an arch bar, having its ends transversely hinged at the distal of said plates, and an equalizing spring, having its ends pivoted to said anchor plates anteriorly, for rotary movement in the arc of a circle, toward and from the roof of the mouth.

In testimony whereof I aflix my signature in presence of two witnesses.

FREDERICK W. DRISSLER.

Witnesses:

ALICE L. KING, HARRY D. KILGORE. 

